Home / 14,388.30-21,582.45-6,612.30

Finding the Fourth Proportional to 14,388.30, 21,582.45 and 6,612.30

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Solution

The fourth proportional to 14,388.30, 21,582.45 and 6,612.30 is: 9,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.30 : 21,582.45 = 6,612.30 : x
  2. Step 2: Convert to fraction form
    14,388.30/21,582.45 = 6,612.30/x
  3. Step 3: Cross multiply
    14,388.30x = 21,582.45 × 6,612.30
  4. Step 4: Simplify right side
    14,388.30x = 142,709,634.14
  5. Step 5: Solve for x
    x = 142,709,634.14/14,388.30
  6. Step 6: Final answer
    x = 9,918.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.